Australian Aboriginal languages

The major issue in the internal subgrouping of Australian languages is the relationship between the Pama-Nyungan group, which covers 90 percent of the continent, and the residual non-Pama-Nyungan cluster, which stretches across northernmost Australia (except Queensland). The Yuulngu group is a separate Pama-Nyungan enclave, isolated from the main block by intervening non-Pama-Nyungan...